Dolphin is a GameCube and Wii emulator with high compatibility across the majority of titles for both platforms. It was first developed as closed source in 2003, and as open source since 2008.
Dolphin is a cross platform emulator that runs on Windows (Vista and up), Linux, Mac OS X (Mavericks and up), FreeBSD, and Android (5.0 and up). For their ease of use and additional graphics backend options, Windows 7 x64 and Windows 8.1 x64 are recommended.
Dolphin is a dual core application that relies upon IPC (Instructions Per Clock) for performance. Additional cores will not make Dolphin go any faster, though an extra core that Dolphin isn’t using may help slightly by keeping background tasks from using the same cores as Dolphin.